Keep packages from being selected in a Cocoa open single file dialog.
Keep packages from being selected in a Cocoa open single file dialog.

Patch from Vernon Tang.

BUG=33483
TEST=Check that user can't select an .app using an html file input element. Check that the "load unpacked extension" and "pack extension" browse dialogs in chrome://extensions/ continue to work as expected.

Review URL: http://codereview.chromium.org/548199


git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@37693 0039d316-1c4b-4281-b951-d872f2087c98

Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,adobe/chromium,adobe/chromium,gavinp/chromium,adobe/chromium,gavinp/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,yitian134/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,adobe/chromium,ropik/chromium,ropik/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,ropik/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,ropik/chromium,ropik/chromium,adobe/chromium,yitian134/chromium